Types of Chemical Reactions: Exam Part 2

Which of the following is NOT a type of chemical reaction listed in the material?

• Synthesis (Combination)

• Decomposition

• Photosynthesis

• Combustion

What is another name for a Synthesis reaction?

• Combination

• Decomposition

• Double Replacement

• Combustion

Which type of chemical reaction is represented by the equation: 2H₂ + O₂ → 2H₂O?

• Decomposition

• Synthesis

• Single Replacement

• Combustion

In a decomposition reaction, what happens to the reactants?

• They combine to form one product

• They break apart into simpler substances

• They switch partners

• They burn in oxygen

Which type of reaction involves two compounds exchanging elements or groups?

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement

What is the missing reactant in the following chemical reaction? Ca + ___ → CaCl₂

• Cl₂

• O₂

• H₂O

• CO₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What type of reaction is represented by the equation: Ca + Cl₂ → CaCl₂?

• Combustion

• Single Replacement

• Double Replacement

• Combination (Synthesis)

In the reaction Na₂SO₄ + BaCl₂ → ?, which ions are present in the reactants?

• Na⁺, SO₄²⁻, Ba²⁺, Cl⁻

• H⁺, O²⁻, Ca²⁺, Cl⁻

• K⁺, NO₃⁻, Ba²⁺, SO₄²⁻

• Na⁺, Cl⁻, Ba²⁺, O²⁻

What type of reaction occurs when Na₂SO₄ reacts with BaCl₂?

• Decomposition

• Double Replacement

• Combustion

• Single Replacement

What is the solid (precipitate) formed when Na₂SO₄ reacts with BaCl₂?

• NaCl

• BaSO₄

• CaCl₂

• Na₂SO₄